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authorSara Sharon2019-01-16 20:26:25 +0100
committerJohannes Berg2019-02-08 13:51:50 +0100
commit7ece9c372b21635120e7ab5ea3fc41ce9892ead8 (patch)
treef2b78f04ca9cec69c322379b7c889f2734a488c5 /include/net/cfg80211.h
parentcfg80211: parse multi-bssid only if HW supports it (diff)
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cfg80211: make BSSID generation function inline
This will enable reuse by mac80211. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net/cfg80211.h')
-rw-r--r--include/net/cfg80211.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 67aeb7199617..c33ebc41d797 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -5462,6 +5462,29 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
}
/**
+ * cfg80211_gen_new_bssid - generate a nontransmitted BSSID for multi-BSSID
+ * @bssid: transmitter BSSID
+ * @max_bssid: max BSSID indicator, taken from Multiple BSSID element
+ * @mbssid_index: BSSID index, taken from Multiple BSSID index element
+ * @new_bssid_addr: address of the resulting BSSID
+ */
+static inline void cfg80211_gen_new_bssid(const u8 *bssid, u8 max_bssid,
+ u8 mbssid_index, u8 *new_bssid_addr)
+{
+ u64 bssid_tmp, new_bssid;
+ u64 lsb_n;
+
+ bssid_tmp = ether_addr_to_u64(bssid);
+
+ lsb_n = bssid_tmp & ((1 << max_bssid) - 1);
+ new_bssid = bssid_tmp;
+ new_bssid &= ~((1 << max_bssid) - 1);
+ new_bssid |= (lsb_n + mbssid_index) % (1 << max_bssid);
+
+ u64_to_ether_addr(new_bssid, new_bssid_addr);
+}
+
+/**
* enum cfg80211_bss_frame_type - frame type that the BSS data came from
* @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is
* from a beacon or probe response